20155140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{111973}}^1$

素因数の和:111988

約数の個数: 36

約数和(自身を含む): 61137804

約数和(自身を除く): 40982664

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 111973, 223946, 335919, 447892, 559865, 671838, 1007757, 1119730, 1343676, 1679595, 2015514, 2239460, 3359190, 4031028, 5038785, 6718380, 10077570, 20155140]

約数ペア:

[(1, 20155140), (2, 10077570), (3, 6718380), (4, 5038785), (5, 4031028), (6, 3359190), (9, 2239460), (10, 2015514), (12, 1679595), (15, 1343676), (18, 1119730), (20, 1007757), (30, 671838), (36, 559865), (45, 447892), (60, 335919), (90, 223946), (180, 111973)]